package com.tjh.gulimall.order.web;

import com.tjh.common.exception.NoStockException;
import com.tjh.gulimall.order.service.OrderService;
import com.tjh.gulimall.order.vo.OrderConfirmVo;
import com.tjh.gulimall.order.vo.OrderSubmitVo;
import com.tjh.gulimall.order.vo.SubmitOrderResponseVo;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpServletRequest;
import java.util.concurrent.ExecutionException;

/**
 * Create by koala on 2021-05-17
 */
@Controller
@Slf4j
public class OrderWebController {

    @Autowired
    OrderService orderService;

    /**
     * day117：返回订单确认页需要用到的数据
     * 测试：
     *      1、浏览器访问购物车页面（已登录状态）：http://cart.gulimall.com/cart.html
     *      2、点击结算按钮去结算页
     *      3、查看结算页的数据详情
     */
    @GetMapping("/toTrade")
    public String toTrade(Model model) throws ExecutionException, InterruptedException {
        OrderConfirmVo confirmVo = orderService.confirmOrder();
        model.addAttribute("orderConfirmData",confirmVo);
        return "confirm";
    }

    /**
     * 122：下单功能
     */
    @PostMapping("/submitOrder")
    public String submitOrder(OrderSubmitVo vo, Model model, RedirectAttributes redirectAttributes){
        //创建订单，验令牌，验价格，锁库存
        //下单成功来到支付选择页
        //下单失败回到订单确认页重新确认订单信息
        System.out.println("订单提交的数据：" + vo);
        try {
            SubmitOrderResponseVo responseVo = orderService.submitOrder(vo);
            if (responseVo.getCode() == 0){
                //下单成功到支付选择页
                model.addAttribute("SubmitOrderResp",responseVo);
                return "pay";
            }else {
                String msg = "下单失败：";
                switch (responseVo.getCode()){
                    case 1:msg+="订单信息过期，请刷新再次提交";break;
                    case 2:msg+="订单商品价格发生变化，请确认后再次提交";break;
                    case 3:msg+="库存锁定失败，商品库存不足";break;
                }
                redirectAttributes.addFlashAttribute("msg",msg);
                return "redirect:http://order.gulimall.com/toTrade";
            }
        }catch (Exception e){
            log.error(">>>>>>>>submitOrder>>>exception:",e);
            if (e instanceof NoStockException) {
                String message = ((NoStockException)e).getMessage();
                redirectAttributes.addFlashAttribute("msg",message);
            }
            return "redirect:http://order.gulimall.com/toTrade";
        }

    }

}
